How to Remove Previous of Windows Installation in Windows 10

Ten days after you upgrade to Windows 10, your previous version of Windows will be automatically deleted from your PC. If your driver is low in space, you can manually delete the previous version of Windows installation. This article describes 3 ways to delete Windows installation files on Windows 10 PC.

How to Delete Windows Installation Folder in Settings

Deleting your previous version of Windows installation(s), here is how:

Step 1: Open Settings app, click System > Storage.

Step 2: Click on This PC and then scroll down the list and choose Temporary files.

Step 3: Under Remove temporary files, select the Previous version of Windows check box and then choose Remove files.

How to Remove Windows Installation Folder using Disk Cleanup

Windows. old folder contains a copy of the previous Windows installation in C: disk, and it take up much of storage. It can free up several GBs of disk space by using the Remove previous Windows installations option in Disk Cleanup Tool.

Step 1: Open the Disk Cleanup tool in Run.

Press Win+R to open Run dialog, type in cleanmgr, and then hit Enter key.

Wait while the system is calculating the amount of the used space.

Step 2: Once the tool opens, click Clean up system file button.

Step 4: Scroll down till you see Previous Windows installation(s). Check this option and click on OK.

Step 5： Click on Delete Files to complete the task.

While there you may also want to delete these upgrade & installation files:

Windows upgrade logs files: These files contain information that help you troubleshoot upgrade & installation process. If your process has gone smoothly, you may delete these files.

Windows ESD installation files: If you do not need to reset or refresh your PC, you may delete these files.

Temporary Windows installation files: These installation files are used by Windows setup and they can be safely deleted.

How to Delete Windows.old Folder using Command Prompt

If you can't remove the Windows.old folder and other related files, because it is busy read the next paragraph. you can try to remove Windows.old Folder using Command Prompt.